通过正交试验，研究了各因素对真空实型铸造铸钢件涂料的透气性、干强度、剪切力、悬浮性的影响。
In this paper, the influence of various parameters on suspension shearing dry strength and permeability of EPC coating used on steel casting through right Angle test was studied.
对硅溶胶在加热过程中的变化及其在透气性金属陶瓷材料中的作用进行了一些试验分析。
The change of the colloidal silicate in heating and its action on permeable cermet have been investigated and compared with the ethyl silicate binder.
试验结果表明，在考虑的工艺因素中，对充型速度的影响由大到小依次为：模样材料、金属静压头、 涂料透气性和浇注温度。
The results show the relative importance of factors, from most significant to least significant: foam material, metallostatic head, the permeability of the coating, pouring temperature.
对不同鞋面革、鞋里材料单层和复合试样的透气性及其测试的随机性进行了试验研究。
The air permeability and the randomness of air permeability test of different shoe upper leather, shoe lining single -layer material and compounded samples were studied.
试验表明：它具有低粘度、渗透力强、不污染石材，并能很好的保持石材的透水透气性。
The experiments show that the coating is low viscous, high penetrating, and not contaminating the stone. It maintains a very nice air and moisture permeability with the stone.
试验表明：它具有低粘度、渗透力强、不污染石材，并能很好的保持石材的透水透气性。
The experiments show that the coating is low viscous, high penetrating, and not contaminating the stone. It maintains a very nice air and moisture permeability with the stone.
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